| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5551132 | Journal of Food and Drug Analysis | 2017 | 6 Pages |
Calcium propionate has been widely used as a preservative in bakery and in bread. It is sometimes not carefully used, or a high concentration is added to preserve products. High consumption of calcium propionate can lead to several health problems. This study aims to develop a fast and simple semiquantitative method based on color complex formation for the determination of calcium propionate in a bread sample. A red-brown complex was obtained from the reaction of ferric ammonium sulfate and propionate anion. The product was rapidly formed and easily observed with the concentration of propionate anion >0.4Â mg/mL. A high-performance liquid chromatography (HPLC) method was also developed and validated for comparison. Twenty-two bread samples from three markets near Bangkok were randomly selected and assayed for calcium propionate using the above two developed methods. The results showed that 19/22 samples contained calcium propionate >2000Â mg/kg. The results of the complex formation method agreed with the HPLC method.
Graphical abstractThis study aims to develop a fast and simple semiquantitative method based on color complex formation for determination of calcium propionate in a bread sample. A red-brown complex was obtained from the reaction of ferric ammonium sulfate and propionate anion. Limit of detection of the method was 0.4Â mg/mL.Download high-res image (69KB)Download full-size image
